Dev version of ALCOREM
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ALCOREM_dev/TROUBLESHOOTING.md

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ALCOREM v0.1.x

Topics in this troubleshooting:

  • OSX problems when compiling

OSX problems when compiling

If you experienced a problem with OSX when compiling this code, one of the possible issue is related to this error: "clang: error: unsupported option '-fopenmp' clang: error: unsupported option '-fopenmp' make: *** [compute_complexity] Error 1"

This issue is related to a clash between clang and openmpi.

A possible workaround is through brew, updating gcc:

brew install gcc

If you then compile the code with the makefile using gcc-8 instead of gcc, it should work. Just modify the Makefile as:

"CC=gcc" -> "CC=gcc-8"

If the previous workaround does not work, then try to compile the code in a different way. Remove the option "-fopenmp" inside the Makefile, then modify the environment variable CC in this way:

"CC=gcc" -> "CC=clang -Xpreprocessor -fopenmp -I/usr/local/include -L/usr/local/lib -lomp"